{"product_id":"precision-twist-drill-5998568-screw-machine-drill-bit","title":"Precision Twist Drill 5998568 Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRECISION TWIST DRILL 5998568 is a screw machine length drill bit designed for high-performance metal cutting in production and maintenance environments. Built from high speed steel with a coated finish, this bit measures 0.9844 inches (63\/64 inch) in diameter with an overall length of 6 inches and a flute length of 4 inches. The 118-degree standard point angle and web-thinned, tapered web configuration reduce thrust and improve chip evacuation. Right-hand spiral flute geometry with a 2.5xD flute-to-diameter ratio keeps the cut clean and consistent. Licensed trades and production machinists rely on this bit for demanding applications where precision bore size and tool life matter.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for screw machine operations and general-purpose drilling where a shorter, more rigid tool length is needed. Its primary workpiece material rating is titanium, making it appropriate for hard-metal and high-strength alloy drilling as well as general ferrous and non-ferrous applications. The straight-cylindrical shank fits standard drill chucks without additional adapters. Series R40 is built to ANSI standards for consistent dimensional accuracy across the production line.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e63\/64 inch (0.9844 inches) diameter with screw machine length profile for added rigidity\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction with coated finish for extended wear resistance\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced entry thrust\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flute with 2.5xD flute-to-diameter ratio for efficient chip removal\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank for direct chuck mounting without adapters\u003c\/li\u003e\n  \u003cli\u003eBuilt to ANSI standards under Series R40 for dimensional consistency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style screw machine length drill bit compatible with standard drill chucks accepting a straight-cylindrical shank at 0.9844 inches diameter. Primary workpiece material rating is titanium; also suited for general-purpose drilling in ferrous and non-ferrous metals per ANSI Series R40 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or tool-and-die professionals familiar with proper spindle speed and feed rate selection for the workpiece material. Secure the straight-cylindrical shank firmly in a properly sized chuck before operation. Inspect the cutting edges and coating condition before each use; a damaged or dull bit should be replaced or professionally resharpened. Follow applicable shop safety procedures, including the use of appropriate cutting fluid where required by the workpiece material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Fractional)\u003c\/strong\u003e: 63\/64 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter (Decimal)\u003c\/strong\u003e: 0.9844 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 2.5xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PRECISION TWIST DRILL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5998568\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51717577146674,"sku":"5998568","price":117.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3227008c911e766ed10fb72a825f24b8.jpg?v=1788542804","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5998568-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}